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AUSCERT External Security Bulletin Redistribution
ESB-2020.3959
2020.2 IPU - Intel Processor Advisory
11 November 2020
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AusCERT Security Bulletin Summary
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Product: Intel Processors
Publisher: Intel
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-8698 CVE-2020-8696
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00381.html
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Intel ID: INTEL-SA-00381
Advisory Category: Hardware
Impact of vulnerability : Information Disclosure
Severity rating : MEDIUM
Original release: 11/10/2020
Last revised: 11/10/2020
Summary:
Potential security vulnerabilities in some Intel Processors may allow
information disclosure. Intel is releasing firmware updates to mitigate these
potential vulnerabilities.
Vulnerability Details:
CVEID: CVE-2020-8698
Description: Improper isolation of shared resources in some Intel(R) Processors
may allow an authenticated user to potentially enable information disclosure
via local access.
CVSS Base Score: 5.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVEID: CVE-2020-8696
Description: Improper removal of sensitive information before storage or
transfer in some Intel(R) Processors may allow an authenticated user to
potentially enable information disclosure via local access.
CVSS Base Score: 2.5 Low
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Affected Products:
A list of impacted products can be found here .
Recommendations:
Intel recommends that users of affected Intel Processorsupdate to the latest
version firmware provided by the system manufacturer that addresses these
issues.
Intel has released microcode updates for the affected Intel Processors that are
currently supported on the public github repository. Please see details below
on access to the microcode:
GitHub*: Public Github: https://github.com/intel/
Intel-Linux-Processor-Microcode-Data-Files
To address this issue, an SGX TCB recovery will be required in Q4 2020. Refer
to Intel SGX Attestation Technical Details for more information on the SGX TCB
recovery process.
Acknowledgements:
The following issues were found internally by Intel employees. Intel would like
to thank Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff.
Intel, and nearly the entire technology industry, follows a disclosure practice
called Coordinated Disclosure, under which a cybersecurity vulnerability is
generally publicly disclosed only after mitigations are available.
Revision History
Revision Date Description
1.0 11/10/2020 Initial Release
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